National Public Radio: The World Resources Institute has news to ease a meat-lover's conscience: In a new report, it says you don't have to bid burgers bye-bye in order to reduce the environmental footprint of what you eat. Cutting back could go a long way, it says. In the report, the nonprofit calculates the planetary effect of various possible changes in how the world eats. According to the WRI, the planetary impact of Americans' meat and dairy habit accounts for nearly 90 percent of all the land used to feed us -...